Wrench



J. W. DAVIES.

wRENcH.` APPLICATION FILED MAY 25, 1920.

lmg; Patented May 24, 119211.

l N VENTOR.

JOHN. EVM. G1 Bril.

NESEGR, NSYLVMTIA.

Specicaton of Application filed May 25,

To all whom. it may concern.'

Be it known that i, JOHN TW. Davies, a citizen of the United States, residing at arnesboro, in the county of Cambria and State of Pennsylvania, have invented certain new and useful Improvements in iVrenches, of which the following 1s a specin cation, reference being had therein to the accompanying drawings.

This invention relates to an in automatic wrenches, and has for its object the construction of a simple and etticient wrench that can be quickly adjusted to accommodate diiiferent size nuts, and which can also adjusted to make the operation on the nuts easier, by reason of positioning the shank or handle of the wrench at an angie to the head, carrying the jaws.

TWith this and other objects in view, my invention comprises certain novel combinations, constructions and arrangements of parts as will be hereinafter described, illustrated in the accompanying drawings, and niore particularly pointed out in the appended ciainis.

1n the drawings:

Figure 1 is a View in side elevation of a wrench constructed in accordance with the oresent invention, while Fig. 2 is a vertical central section of the saine.

Fig. 3 is perspective view ot the movable screw-carrying casing.

Fig. i is a fragmentary view in elevation, showing the inner end of the shank and the inner end of the head, pivotaliy inounted on the sha t.

Referring to the drawings by numerals, designates the shank which is provided with a grip 2, and the inner end is biturcated at 3. An aide i is screwed into the bifurcated portion 3 of the handle, and pivotaiiy f nounted on the axle e is a impro vement head The inner end oi the head is provided with notches 6, into which notches a. doc 7 en tends; the dog 'i is carried by the locking plunger' 8. Secured to the outer end ot the plunger 8 is a ball-grip 9. In a pocket 10,

'formed in the shank 1, is a coil spring 11;

this spring 11 is placed around the plunger 8 and bears at one end against the dog 7 for holding the dog in one of the notches 6 or" the head 5, whereby the head wiii be retained in an adjusted position upon the but upon. the operator putting outanle 1, n t wardiy upon the ball-grip 9, the dog wili Letters be' removed troni the particular notch 6 in which it is seated, freeing the heat. and allowing the head to be swung to the desired position upon the axle a.

@n the outer end or" the head is formed an integral primary jaw 12, and in the body of the head is a large opening 13, in which t e movable screw-carrying casing la is slidably mounted.

A siidable, auxiliary jaw lois provided with an integral neck 16, which neck has a groove 1'?l formed in one side, and a rib 18, integral with the head 5, extends into the groove rifeeth 19 are formed on the lower edge of the neck 16, and the screw 21), rotatably mounted at its ends in apertures 21, on the ends 22 ot' the casing 14, meshes with the teeth 19, whereby the i k 1G and jaw 15 can be adjusted upon the head by t e rotation of the screw 20; the ieshing or the screw with the teeth 19 results in a positive adjustment ot the jaw 15 when the screw is rotated. j

rlhe ends 22 of the casing 145 e integral with the bottom 23 or" the cas- I, and depending rom opposite edges of the bottoni C' es 2a; these tianges bear upon Under the bottom hich is seated in a head. rhe spring the head 5. 23 is a con spring 25, w socket formed in the 25 normally keeps the screw 20 meshing with the teeth 19, but upon the operator the screw ier bifuru ne casing can he tiited out or" the large opening 13 and removed entirety from the head 5, at the wlil of the operator. 'orinally, the extreme upper e or toe easing 1d extend intov sidesockets l).

l" the foregoing description, it wili i* iOm j understood that the head 5 adjusted an angle to the shank 1. and that the aua; iary jaw 15 can be adjusted on the head with respect to the lprimary aw 12. for accommoc'ating different sise nuts or boltl` heads.

ihiie `have described the pr raddle the v can be readily bodiment of my invention, and have illustrated the same in the: accompanying drawings, certain minor changes or alterations may appear to one skilled in the art to which this invention relates, during the extensive manufacture of the same and I, therefore, reserve the right to make such alterations or changes as shall fairly fall within the scope of the appended claims.

ll'hat I claim is:

1. In a wrench of the class described, the combination with a shank, of a head provided with an integral jaw and with a central opening carried by said shank, a movable jaw provided with an integral neck carried by said head, said neck provided with teeth on one edge and extending across the central opening of the head. a casing provided with bifurcatcd en ds straddling the neck. said casing provided with .depending flanges contiguous` to the sides of the head. a

, s )ring on the head and )ressino against the casing. and an adjusting screw journaled upon the casing and normally meshing with the teeth of the neck.

2. In a wrench of the class described. the combination with a shank, of a head carried by the shank. said head provided with a large central opening and with an integral jaw, a neck extending across the central opening and entirely through the head, said neck provided with an integral jaw at one end and with a groove in its side, said head provided with a rib extending into the groove of the neck, said neck provided with teeth in its lower edge, said headv provided with side-sockets opening upon the central opening, a bodily movable casing in said central opening, said casing comprising a bottom having depending Vflanges at 'opposite edges, said. flanges resting against the outer sides of the head, ends integral with the bottom of the casing and provided with bifurcations in their upper ends, the upper ends of thi` ends of the casing extending into said side-sockets of the head. a screw journaled at its ends in the ends of the casing and normally meshing with the teeth on the neck, said head provided with a spring-receiving socket. and a coil spring resting at one end in said spring-receiving socket and positioned under and pressing against the bottoni of the casing. substantially as shown and described.

In testimony whereof I hereunto affix my signature.

JOHN WM. DAVIES` 

